388.50426.50464.00501.5028.01.3294.52276.8412.00456.50500.50544.50589.0030.01.4341.57321.1478.00529.00580.50631.50683.0032.51.5392.11368.6548.50607.50666.50725.00784.0034.51.6446.13419.4624.50691.50758.00825.00892.0036.51.7503.64473.4705.00780.50856.00931.501005.0039.01.8564.63580.8790.00875.00959.501040.001125.0043.02.0697.08655.3975.501080.001185.001285.001390.0047.52.2843.47792.91180.001305.001430.001560.0052.02.41003.80943.61405.001555.001705.001855.0056.02.61178.071107.41645.001825.002000.002175.0060.52.81366.281234.31910.002115.002320.002525.0065.03.01568.431474.32195.002430.002665.002900.00钢丝绳容许拉力(安全荷载)按下式计算:S=Sb/k=αpg/K=0.82×2665÷5=437.1KN其中:α——考虑钢丝绳之间荷载不均匀系数,6×37钢丝绳取0.82;pg——钢丝绳的破断拉力总和,查表得钢丝绳强度极限为1700Mpa的φ65mm钢丝绳的破断拉力总和为2665KN;K——钢丝绳使用安全系数,作为吊索无绕曲时取5。计算得:S=437.1KN>389KN,满足吊装荷载的要求。
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